EP0278819A1 - Scheibenwischerblatt für Kraftfahrzeug, anwendbar zum Wischen einer konvexen Oberfläche - Google Patents

Scheibenwischerblatt für Kraftfahrzeug, anwendbar zum Wischen einer konvexen Oberfläche Download PDF

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Publication number
EP0278819A1
EP0278819A1 EP88400123A EP88400123A EP0278819A1 EP 0278819 A1 EP0278819 A1 EP 0278819A1 EP 88400123 A EP88400123 A EP 88400123A EP 88400123 A EP88400123 A EP 88400123A EP 0278819 A1 EP0278819 A1 EP 0278819A1
Authority
EP
European Patent Office
Prior art keywords
wiper blade
lever
squeegee
frame
blade according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88400123A
Other languages
English (en)
French (fr)
Other versions
EP0278819B1 (de
Inventor
Bernard Raymond
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Systemes dEssuyage SAS
Original Assignee
Valeo Systemes dEssuyage SAS
Equipements Automobiles Marchal SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Systemes dEssuyage SAS, Equipements Automobiles Marchal SA filed Critical Valeo Systemes dEssuyage SAS
Publication of EP0278819A1 publication Critical patent/EP0278819A1/de
Application granted granted Critical
Publication of EP0278819B1 publication Critical patent/EP0278819B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S1/3801—Wiper blades characterised by a blade support harness consisting of several articulated elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S2001/3812—Means of supporting or holding the squeegee or blade rubber
    • B60S2001/3813—Means of supporting or holding the squeegee or blade rubber chacterised by a support harness consisting of several articulated elements

Definitions

  • the present invention relates to a wiper blade intended to equip a motor vehicle, this blade being particularly suitable for wiping a convex surface.
  • windshields are widened as much as possible. This enlargement is obtained by moving the lateral uprights of the windscreen backwards, so that it has a very rounded shape on the sides of the vehicle.
  • panoramic windshields therefore have a very variable radius of curvature depending on whether the center of the windshield or its lateral end is considered.
  • the wipers which sweep a panoramic windshield cannot constantly conform to the very variable curvature of the windshield: the wiping, if it is correct in the center of the latter, is practically nonexistent on the sides, which, in rainy weather, cancels the increase in visibility that is expected from the panoramic shape of the windshield.
  • the wiper blade comprises, on at least one of its ends, a member formed by two oscillating arms articulated on the same axis, substantially symmetrical to each other with respect to this axis and biased towards one another by a spring, said axis also carrying a conventional lifting beam in one piece placed between the two arms.
  • the object of the present invention is to propose a new solution for making the wiper blade follow the surface to be wiped when this surface becomes convex, which is in particular the case of wiping the lateral parts of a screen. -brise, this solution offering the complementary advantage compared to those which have been proposed so far, to ensure a dewatering action all the stronger as the surface is more convex.
  • the present invention therefore relates to a wiper blade comprising a frame intended to be articulated on the end of a wiper arm and comprising, at each of its ends, at least one articulated lifter, said spreaders allowing the support of a squeegee suitable for rubbing against a surface to be wiped, characterized in that it comprises an auxiliary lever articulated on the part of the frame which extends the arm and the ends of which bear on the back of the squeegee, respectively on its middle zone and on its end.
  • a wiper blade constituted by a frame 2 which carries two main lifting beams 3, 4, bearing, in turn, each two secondary lifting beams respectively 3 a , 3 b and 4 a , 4 b , the ends of which carry a stiffening and holding blade (not shown) constituting the back of a squeegee 5.
  • the frame 2 of elongated shape is a U-shaped frame, comprising two wings 6 connected to a bottom 7.
  • the core 7 widens and has, in this enlarged part, an opening 8 (FIG. 2), the width of which is practically equal to that of said bottom 7.
  • the wings 6 extend upwards in their part situated opposite said opening 8; so as to constitute, in this central region of the frame, a coupling chappe of the control arm 9 of the wiper blade 1.
  • the wings 6 are connected, in the aforementioned region, by a axis 10, which is perpendicular to them and which constitutes the axis of articulation of the control arm 9.
  • Each end of the frame 2 has an articulation axis, respectively 12 and 13 around which a main lifting beam, respectively 3 or 4, can oscillate.
  • each end of a main lifting beam 3 or 4 has an axis d articulation around which can oscillate the secondary spreaders, respectively 3 a , 3 b and 4 a , 4 b .
  • the free ends 14 of the secondary lifting beams 3 a , 3 b , 4 a 4 b are shaped as stirrups for holding the squeegee 5.
  • the wiper blade 1 also comprises a lever 15 disposed in the region of said blade 1 located opposite the drive shaft (not shown) of the control arm 9.
  • This lever 15 is articulated around an axis 16 located substantially mid-length of the part 2 a of the frame 2 between the axes 10 and 13.
  • the lever 15 consists of an elongated member, of generally curved shape, bearing, by its two free ends, on the back of the squeegee 5, on the one hand, at 17 at the end thereof opposite the drive shaft (not shown) of the arm 9, and, on the other hand, at 18 in the vicinity of the region located at the right of the axis 10, but always in the same half of the squeegee 5.
  • the lever 15 comprises two parts of different lengths, namely a part 19 located between the articulation axis 16 and the fulcrum 17 representing a generally arcuate shape, of concavity turned towards the end 5 a of the squeegee 5 , and another part 20 located between said axis 10 and the fulcrum 18 having a generally bent shape.
  • This part 20 comprises a short first branch 21, substantially parallel to the squeegee 5 and extending from the fulcrum 18, and another oblique branch 22 connecting the end of the previous one to the part 19.
  • This part 19 of the lever 15 extends above the corresponding end of the part 2 a of the frame 2 and of the arms directed towards the outside of the lifter main 4 and secondary spreader 4 b . It has a U-shaped section, the wings 23 a , 23 b of which come, in the mounting position, to be located on either side of the wings 6 of the part 2 a of the frame 2, the core 24 being arranged. above the core 7 of the frame 2 and the outer branches of the spreaders 4 and 4 a .
  • the core 19 has a lumen 24 which is situated beyond the articulation axis of the primary yoke 4 to the end portion of the brush 5, the lumen 24 has cooperates with a dorsal boss 4c of the rudder primary 4 and allows the lever 15 to be held radially when the latter is in abutment on the brush 5, said brush 5 wiping a strongly convex surface and this primary lifter 4 forming an integral part of part 2 a of the frame 2 and secondary bearings 4 a and 4 b is more rigid radially than the end of the lever 15 (FIG. 5).
  • the height of the wings 23 a and 23 b decreases as we approach the free end of the part 19 of the lever 15, said part 19 ending in a curved blade on itself forming the fulcrum 17.
  • This curved blade has an extension 17a and 17b integral with the lever 15, this extension is supported on the back of the brush 5 and the end 17b slides under the secondary yoke retaining clip 4 b, the bead 17 b serves as a stop for the penetration of the end 17 b under the retaining stirrups, this embodiment prevents the end 21 of the lever 15 from being able to escape laterally, in the wiping action of the back of the brush 5 ( Figure 6-7).
  • the core 24 has a notch 25 (FIG. 4), so that in this zone, the lever 15 is limited to the two regions opposite the lateral wings 23 a , 23 b .
  • These wings extend at 26 a , 26 b beyond the axis 16, obliquely then substantially parallel to the squeegee 5, to be joined, at their free ends, by a transverse axis 18 and a tongue 27 a forming the stop 27, which comes to bear on the back of the squeegee 5 in the rest position of the lever 15, the extensions 26 a , 26 b of the wings form, with the stop 27, the aforementioned part 20 of the lever 15.
  • the stop 27 has a tongue 27a which has one end 27 b 18 wound on a swivel axis on said axis 18, the other end 27 c of the tongue 27a slides under the retaining stirrups of the secondary yoke 4a
  • This embodiment prevents the stop 27 from being able to escape laterally, in the wiping action, from the back of the squeegee 5 (FIG. 8).
  • the arm 9 under the effect of elastic return means (not shown) exerts a force F, on the axis 10, tending to apply the squeegee 5 against the surface to be wiped.
  • auxiliary lever can be articulated on the other half-frame or a second auxiliary lever can complete the first.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Pivots And Pivotal Connections (AREA)
EP88400123A 1987-01-27 1988-01-21 Scheibenwischerblatt für Kraftfahrzeug, anwendbar zum Wischen einer konvexen Oberfläche Expired EP0278819B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8700909A FR2609951B1 (fr) 1987-01-27 1987-01-27 Balai d'essuie-glace pour vehicule automobile, adapte pour essuyer une surface convexe
FR8700909 1987-01-27

Publications (2)

Publication Number Publication Date
EP0278819A1 true EP0278819A1 (de) 1988-08-17
EP0278819B1 EP0278819B1 (de) 1989-12-13

Family

ID=9347295

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88400123A Expired EP0278819B1 (de) 1987-01-27 1988-01-21 Scheibenwischerblatt für Kraftfahrzeug, anwendbar zum Wischen einer konvexen Oberfläche

Country Status (5)

Country Link
US (1) US4831680A (de)
EP (1) EP0278819B1 (de)
DE (1) DE3860010D1 (de)
ES (1) ES2011826B3 (de)
FR (1) FR2609951B1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB887630A (en) * 1959-08-31 1962-01-24 John Will Anderson A windshield wiper blade assembly
FR2321409A1 (fr) * 1975-08-20 1977-03-18 J B Brevets Balai d'essuie-glace pour vehicules automobiles
DE2638010A1 (de) * 1976-08-24 1978-03-09 Rau Swf Autozubehoer Wischblatt
US4438543A (en) * 1980-09-18 1984-03-27 Nippon Soken, Inc. Windshield wiper device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3158890A (en) * 1959-11-06 1964-12-01 John W Anderson Windshield wiper blade assembly
FR1406560A (fr) * 1964-06-08 1965-07-23 Sev Marchal Perfectionnement aux essuie-glace pour pare-brise panoramique
US3263262A (en) * 1964-11-04 1966-08-02 Arvin Ind Inc Windshield wiper

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB887630A (en) * 1959-08-31 1962-01-24 John Will Anderson A windshield wiper blade assembly
FR2321409A1 (fr) * 1975-08-20 1977-03-18 J B Brevets Balai d'essuie-glace pour vehicules automobiles
DE2638010A1 (de) * 1976-08-24 1978-03-09 Rau Swf Autozubehoer Wischblatt
US4438543A (en) * 1980-09-18 1984-03-27 Nippon Soken, Inc. Windshield wiper device

Also Published As

Publication number Publication date
FR2609951B1 (fr) 1989-05-05
ES2011826B3 (es) 1990-02-16
FR2609951A1 (fr) 1988-07-29
DE3860010D1 (de) 1990-01-18
US4831680A (en) 1989-05-23
EP0278819B1 (de) 1989-12-13

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